This role involves developing advanced validation frameworks for connected devices and intelligent digital products within a Python-based environment. The Automation Test Software Engineer will design and build robust end-to-end automation frameworks that interact directly with physical hardware, enabling large-scale validation and quality assurance across device fleets. The position combines software engineering, test automation, infrastructure development, and systems integration, offering an opportunity to work on complex real-world products in a highly collaborative engineering environment.
Responsibilities
Design, develop, and maintain end-to-end test automation frameworks using Python
Create automation solutions that interact with and validate physical devices and hardware platforms
Build reusable device abstraction layers, automation libraries, and testing utilities
Develop scalable testbed infrastructure supporting automated execution across large device fleets
Design and implement frameworks that support reliable and repeatable validation in laboratory and production environments
Build and maintain APIs, web services, microservices, SDKs, and supporting backend services
Develop monitoring, reporting, logging, and diagnostic capabilities within automation platforms
Apply software engineering best practices including code quality standards, design patterns, modular architecture, and automated testing
Collaborate closely with global engineering, software development, and quality teams
Troubleshoot hardware, software, and automation issues across multiple environments
Support continuous improvement initiatives for automation efficiency, scalability, and reliability
Contribute to technical design reviews, architecture discussions, and process improvements
Share knowledge and mentor team members to support engineering excellence
Produce clear technical documentation and communicate effectively with stakeholders
Requirements
Strong Python software development skills
Experience designing and developing automated test frameworks
Knowledge of hardware integration and device communication protocols
Experience testing physical products, embedded systems, or IoT devices
Strong understanding of software architecture, object-oriented design, and design patterns
Experience with RESTful APIs, web services, and backend system integration
Knowledge of automation infrastructure, test orchestration, and execution platforms
Experience using source control systems such as Git
Understanding of continuous integration and continuous delivery (CI/CD) practices
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Experience debugging complex hardware and software interactions
Knowledge of Linux-based development and testing environments
Experience with IoT device ecosystems and connected products
Knowledge of networking concepts including TCP/IP, Wi-Fi, Bluetooth, and device provisioning
Experience with embedded software validation and hardware-in-the-loop testing
Familiarity with cloud platforms and distributed systems
Experience developing automation for camera, sensor, consumer electronics, or smart device platforms
Exposure to AI-assisted testing, machine learning validation, or Generative AI technologies
Experience with containerisation technologies such as Docker and Kubernetes
Bachelor's degree in Computer Science, Software Engineering, Electronics Engineering, or a related technical discipline, or equivalent industry experience
Commercial experience in software development using Python
Proven experience building and maintaining automated testing frameworks
Experience developing automation against physical hardware, embedded systems, or IoT devices
Experience delivering production-quality software solutions following software engineering best practices
Experience working with hardware test environments, laboratories, or device validation systems
Experience integrating automation solutions into CI/CD pipelines
Familiarity with Agile software development methodologies
Experience collaborating within cross-functional engineering teams
About the Company
SII UK works in partnership with customers UK-wide to deliver high-impact engineering solutions, with five strategic offices in Belfast, Chester, Farnborough, London, and Oxford. SII UK is a trusted Aerospace and Defence company.
The SII Group is an engineering and consulting company in technologies (ICT) and a digital services company (ESN) created in 1979 by Bernard HUVÉ, a trained engineer.
The SII Group employs over 16,000 people in 20 countries across 100 local branches and recruits an average of over 4,000 consultants and engineers each year who work daily to integrate and develop new technologies and evolve information systems.
Always keen to provide value-added and innovative solutions, SII works with major groups in various sectors such as Aeronautics, Space and Defense, Banking-Insurance, Telecommunications, Energy, Retail, Transport and Industry.
